- Title Pages
- [UNTITLED]
- Previous sessions
- Preface
- Illustration
- List of participants
- 1 Real-time feedback control of quantum optical input-output systems
- 2 Quantum noise and quantum measurement
- 3 Circuit QED: superconducting qubits coupled to microwave photons
- 4 Quantum logic gates in superconducting qubits
- 5 Exploring quantum matter with ultracold atoms
- 6 Readout of superconducting qubits
- 7 Quantum error correction
- 8 Quantum optomechanics
- 9 Micromechanics and superconducting circuits
- 10 Two-electron spin qubits in GaAs: control and dephasing due to nuclear spins
- 11 Exploring the quantum world with photons trapped in cavities and Rydberg atoms
- 12 SQUID amplifiers
- 13 Quantum information science: experimental implementation with trapped ions
- 14 An introduction to laser cooling optomechanical systems
- 15 Tomography schemes for characterizing itinerant microwave photon fields
- 16 Using a “frictionless” pendulum for quantum measurement
- 17 Quantum Bayesian approach to circuit QED measurement
- 18 Superconducting quantum circuits: artificial atoms coupled to 1D modes
- 19 A superconducting artificial atom with two internal degrees of freedom
SQUID amplifiers
SQUID amplifiers
- Chapter:
- (p.427) 12 SQUID amplifiers
- Source:
- Quantum Machines: Measurement and Control of Engineered Quantum Systems
- Author(s):
J. Clarke
M. H. Devoret
A. Kamal
- Publisher:
- Oxford University Press
This chapter treats the concrete example of the microwave SQUID, a practical quantum-limited amplifier. The appeal of the SQUID is that it is sufficiently sophisticated to be used in a variety of applications, yet sufficiently simple to allow a detailed analysis of the origin of noise and its processing through the active elements of the device. In particular, the noise of the SQUID can be understood as the mixed-down counterpart of the Johnson noise of the SQUID resistors in the vicinity of the Josephson frequency and its harmonics. The ultimate performances of the microwave SQUID amplifier are discussed.
Keywords: SQUID, quantum-limited amplifier, Johnson noise, Josephson frequency
Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.
Please, subscribe or login to access full text content.
If you think you should have access to this title, please contact your librarian.
To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .
- Title Pages
- [UNTITLED]
- Previous sessions
- Preface
- Illustration
- List of participants
- 1 Real-time feedback control of quantum optical input-output systems
- 2 Quantum noise and quantum measurement
- 3 Circuit QED: superconducting qubits coupled to microwave photons
- 4 Quantum logic gates in superconducting qubits
- 5 Exploring quantum matter with ultracold atoms
- 6 Readout of superconducting qubits
- 7 Quantum error correction
- 8 Quantum optomechanics
- 9 Micromechanics and superconducting circuits
- 10 Two-electron spin qubits in GaAs: control and dephasing due to nuclear spins
- 11 Exploring the quantum world with photons trapped in cavities and Rydberg atoms
- 12 SQUID amplifiers
- 13 Quantum information science: experimental implementation with trapped ions
- 14 An introduction to laser cooling optomechanical systems
- 15 Tomography schemes for characterizing itinerant microwave photon fields
- 16 Using a “frictionless” pendulum for quantum measurement
- 17 Quantum Bayesian approach to circuit QED measurement
- 18 Superconducting quantum circuits: artificial atoms coupled to 1D modes
- 19 A superconducting artificial atom with two internal degrees of freedom
